timlub

Responses from timlub

Speaker impedance patterns - how to read them?
Here you go op,  this should help.  Normally when I am building a speaker.  In design phase, I keep the crossovers external with the drivers in the box, this helps give me very accurate impedance and phase all along the design process.  This perso... 
Speaker impedance patterns - how to read them?
@erik_squires Actually Erik,  no, I am not mixing up a driver vs a finished system.  I didn't say ALL speakers rise with frequency, Many drivers have a fairly smooth curve.   Here is a simple 2 way,  they show driver impedance as well as system im... 
Speaker impedance patterns - how to read them?
@perkri   Your example of the ESL is an Electrostatic speaker. The op is trying to learn how to read impedance chart of a loud speaker.  Duke did give an excellent representation of how a solid state amp reacts to a speaker load vs a tubed amp. Wh... 
Speaker impedance patterns - how to read them?
Actually Eric,  it is absolutely true.  You provided one driver.  I've measured hundreds of impedance curves not a couple.  Yes,  I used a woofer as an example, but this happens in many mids, tweeters etc and their individual impedance curves do s... 
Will sun exposure damage my speakers?
Get yourself some liquid latex.  Foam surrounds that are failing absorb it like a sponge.  A few coats works wonders and adds years to the drivers.  
Speaker impedance patterns - how to read them?
So here you go: Most conventional cone speakers have a rising impedance as frequency goes up. What most speaker designers should do that do not want to impedance compensate their designs is rate the impedance based upon the operating range of the ... 
DAC That Punches Above Its Price Point
I've owned more budget DAC's than you can count.  Also built a couple from diyinhk.com..... For me without a doubt the SMSL SU9 is the best sounding thing that has hit my system under 1k.  Beware,  I had to send it to SMSL to get a firmware update... 
Integrated Amps - another thread...
I second jl35 
testing a crossover
PM me,  I'll answer when I can, but there are things to check that have not been mentioned. This can be figured out.  It may well be a driver problem, if not, I can draw new crossover schematics for you with a few improvements if you can build the... 
testing a crossover
@likklegerry    Sorry,  I haven't heard from you, So you may not want my help at all, but I just started a new job.  I'll be working a ton of hours for awhile.  Won't be able to help.  Tim 
testing a crossover
@likklegerry   sorry,  I just saw this.  PM me, I'll help you figure this out. Tim 
Best midranges...
Geez, I just realized that I answered an 18 year old thread... sorry 
Best midranges...
What size do you need? What sensitivity are you looking for? Impedance?But here is One. 5 Inch, 86db, 8 ohm, beautiful curves.Morel CAW538.... It’ll drop in a sealed box, easy to use, will go down to your requirements as well as extend out past 3k... 
Class D amps seem poised to take over. Then what?
@atmasphere "We've already done that- been working on it for the last 4 years. We're in Beta production right now."congratulations Ralph, I'm sure that it would be GREAT.  I'd love to beta test one.   
Class D amps seem poised to take over. Then what?
Class D has definitely come along way.  From my thinking it really has just made its way to be able to compete with A, A/B and the other variants. I believe that we can finally believe it when someone says "its that good". ,   but we will still al...